Complex Refractive Index of Dense Colloidal Media: Experimental and Theoretical Data

Peter N. A. Speets and J. Kalkman from Delft University of Technology provide experimental data and analysis scripts for the complex refractive index of dense colloidal media. The repository contains raw and processed spectral measurements, including attenuation, group index, and group velocity dispersion. Data is stored in HDF5 files, and analysis is performed with Python scripts implementing Mie scattering and forward fitting models.

Use Cases

• Validate theoretical models of light scattering in dense colloidal suspensions based on the provided attenuation and group index data.
• Study the relationship between particle size distribution and optical properties using the forward fitting scripts mentioned in the description.
• Analyze the effects of dependent scattering and structure factor on the complex refractive index using the included Mie scattering and structure calculation code.

Strengths

• Includes raw spectral measurements stored in HDF5 files, each containing three spectra per measurement.
• Provides processed data for key optical properties: attenuation, group index, and group velocity dispersion.
• Repository contains a full suite of Python analysis scripts for data processing, uncertainty estimation, and model fitting.

Limitations

• Row count and dataset scale are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Delft University of Technology

Collection Method

Experimental measurements using a spectrometer, with data analysis via custom Python scripts.